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KUIPER-00521, 68891

Orbit data source: Space-Track

KUIPER-00521, 68891 is a payload satellite owned by Kuiper Systems (US) in LEO that was launched on Tue, 28 Apr 2026 UTC via an ATLAS V 551 launch vehicle from the Air Force Eastern Test Range (AFETR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.

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<iframe src="https://www.satcat.com/sats-embedded/68891?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/68891?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

68891, 2026-095AD

Orbit

LEO

Country

Related business

Amazon.com Inc (US)

Manufacturer

Kuiper Systems

Mission

Operational spacecraft

Bus & Motor

KUIPER, Unknown motor

Mass

~490 kg wet, ~490 kg dry

Launch date (UTC)

2026-04-28 (2 months ago)

Launch vehicle

ATLAS V 551

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown shape, 3.4 m

Radar Cross Section

Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 10 hours ago

TLE from 10 hours ago

0 KUIPER-00521
1 68891U 26095AD  26171.43031019  .00013396  00000-0  35393-3 0  9990
2 68891  51.8838 226.3159 0001108 345.0025  15.0930 15.38741567  8232

Epoch: 2026-06-20T10:19Z

TLE epoch observation values (Epoch: 2026-06-20T10:19:38.800Z)

Latitude

0.00003°

Longitude

162.75921°

Altitude

449.864 km

Speed

7.644 km/s

True Right ascension

15h 05m 15s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

07:24:37

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

451.052 km

Perigee altitude

449.538 km

Semi-major axis

6,828.432 km

Eccentricity

0.00011

Inclination

51.8838°

RAAN

226.3159°

Arg. of periapsis

345.0025°

True anomaly

15.09631°

Mean anomaly

15.093°

Eccentric anomaly

15.09465°

Mean motion

3.84646 °/min

Orbital period

93.59 mins

BSTAR

0.00035393

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Other satellites on launch #95 in the year 2026 (2026-04-28 UTC)

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KUIPER-00521 Visibility forecast

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Span	Click to sort rows by Start time (UTC) header in descending order	Start Az.	Max El. time (UTC)	Max El. Az.	Max El.	End time (UTC)	End Az.
5 mins	2026-06-21 06:47:50.648Z	244.935° WSW	2026-06-21 06:49:50.648Z	286.674° WNW	40.904°	2026-06-21 06:52:50.648Z	45.004° ENE
4 mins	2026-06-21 11:43:50.648Z	349.125° N	2026-06-21 11:44:50.648Z	12.91° NNE	21.705°	2026-06-21 11:47:50.648Z	77.26° E
5 mins	2026-06-21 13:20:50.648Z	292.988° NW	2026-06-21 13:22:50.648Z	226.955° WSW	39.393°	2026-06-21 13:25:50.648Z	145.38° SSE

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out KUIPER-00521, 68891 on other resources

View KUIPER-00521, 68891 on NASA - NSSDCA Website

View KUIPER-00521, 68891 on Heavens-Above

View KUIPER-00521, 68891 on Keep Track

View KUIPER-00521, 68891 on Celestrak

View KUIPER-00521, 68891 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

KUIPER-00521, 68891

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 10 hours ago

TLE from 10 hours ago

TLE epoch observation values (Epoch: 2026-06-20T10:19:38.800Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #95 in the year 2026 (2026-04-28 UTC)

KUIPER-00521 Visibility forecast

Co-orbital & Co-planar RSOs

Check out KUIPER-00521, 68891 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 10 hours ago